초록 ▼

A respiratory protection apparatus has a face body, and a right side and a left side of a vertical centerline of the body are respectively provided with filtering devices each of which houses an electrical fan unit therein. Without narrowing the field of the front vision, without increasing the fron

A respiratory protection apparatus has a face body, and a right side and a left side of a vertical centerline of the body are respectively provided with filtering devices each of which houses an electrical fan unit therein. Without narrowing the field of the front vision, without increasing the front side weight, and without deteriorating the work efficiency and comfortable fitting, the apparatus ensures the air flow rate of more than 120 liters per minute. Moreover, the electrical fan unit may be detachable from the face body, so that the face body is easily washed and parts are readily replaced with new ones.

대표청구항 ▼

1. A respiratory protection apparatus comprising a face body, filtering devices which are provided both on a left and a right side portion of a vertical centerline of the face body, an electric fan unit provided in a rear portion of each of the filtering devices a battery provided separate from said

1. A respiratory protection apparatus comprising a face body, filtering devices which are provided both on a left and a right side portion of a vertical centerline of the face body, an electric fan unit provided in a rear portion of each of the filtering devices a battery provided separate from said filtering devices and an electric cable coupling said battery to each of said electric fan unit and wherein the electrical fan unit has a fan and a motor to which power is supplied from said battery through said cable.2. A respiratory protection apparatus according to claim 1 wherein each electrical fan unit and each filtering device are respectively provided detachably on the face body.3. A respiratory protection apparatus according to claim 1 wherein the face body is provided with a voice transmitter on an upper central portion thereof and an exhaust valve on a lower central portion thereof.4. A respiratory protection apparatus according to claim 2 wherein the face body is provided with a voice transmitter on an upper central portion thereof and an exhaust valve on a lower central portion thereof.